gdcmStreamImageWriter.h

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/*=========================================================================
 *
 *  Copyright NumFOCUS
 *
 *  Licensed under the Apache License, Version 2.0 (the "License");
 *  you may not use this file except in compliance with the License.
 *  You may obtain a copy of the License at
 *
 *         http://www.apache.org/licenses/LICENSE-2.0.txt
 *
 *  Unless required by applicable law or agreed to in writing, software
 *  distributed under the License is distributed on an "AS IS" BASIS,
 *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *  See the License for the specific language governing permissions and
 *  limitations under the License.
 *
 *=========================================================================*/
 
#ifndef GDCMSTREAMIMAGEWRITER_H
#define GDCMSTREAMIMAGEWRITER_H
 
#include "gdcmWriter.h"
#include <iostream>
#include "gdcmDataSet.h"
 
namespace gdcm
{
 
class MediaStorage;
class RAWCodec;
class GDCM_EXPORT StreamImageWriter
{
 
public:
  StreamImageWriter();
  virtual ~StreamImageWriter();
 
 
  void SetFileName(const char* inFileName);
  void SetStream(std::ostream& inStream);
 
  void DefinePixelExtent(uint16_t inXMin, uint16_t inXMax,
    uint16_t inYMin, uint16_t inYMax, uint16_t inZMin = 0, uint16_t inZMax = 1);
 
 
  uint32_t DefineProperBufferLength();
 
  bool Write(void* inWriteBuffer, const std::size_t& inBufferLength);
 
  virtual bool WriteImageInformation();
  
  bool CanWriteFile() const;
  
 
  void SetFile(const File& inFile);
 
protected:
 
  //contains the PrepareWrite function, which will get the given dataset ready
  //for writing to disk by manufacturing the header information.
  //note that if there is a pixel element in the given dataset, that will be removed
  //during the copy, so that the imagewriter can write everything else out
  Writer mWriter;
 
  //is the offset necessary if we always append?
  //std::streamoff mFileOffset; //the fileoffset for getting header information
  SmartPointer<File> mspFile; //all the non-pixel information
 
  //for thread safety, these should not be stored here, but should be used
  //for every read subregion operation.
  uint16_t mXMin, mYMin, mXMax, mYMax, mZMin, mZMax;
 
  //virtual bool ReadImageSubregionRAW(std::ostream& os);
  virtual bool WriteImageSubregionRAW(char* inWriteBuffer, const std::size_t& inBufferLength);
 
  int WriteRawHeader(RAWCodec* inCodec, std::ostream* inStream);
 
  int mElementOffsets;
  int mElementOffsets1;
 
};
 
 
} // end namespace gdcm
 
#endif //GDCMSTREAMIMAGEWRITER_H